五年级小数简便运算练习资料讲解.doc

《五年级小数简便运算练习资料讲解.doc》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、五年级小数简便运算练习(一)一、口算24×5＝100－23.56＝1.5×0.4＝0.8×50＝32×25＝8×125＝1－0.48＝2.65×1＝0.2×500＝2.5×4＝12×16＋8×16＝二、运用运算定律填空。4.8+8.63+5.2+0.375.93+0.19+2.811.76+0.195+3.24 2.35+1.713+0.287+7.651.57+0.245+7.436.02+3.6+1.98 0.134+2.66+0.8661.27+3.9+0.73+16.17.5＋4.9－6.5 3.07－0.38－1.621.29＋3.7＋2.71＋6.38－2.4

2、5－1.55 3.25＋1.79－0.59＋1.7523.4－0.8－13.4－7.20.32×403 3.2＋0.36＋4.8＋1.641.23＋3.4－0.23＋6.60.25×36 12.7－（3.7＋0.84）36.54－1.76－4.540.25×0.73×47.6×0.8＋0.2×7.60.85×1990.25×8.5×4 1.28×8.6＋0.72×8.612.5×0.96×0.810.4－9.6×0.350.8×（4.3×1.25）3.12＋3.12×9928.6×101－28.6 （4.23＋6.17）×0.80.86×15.7－0.86×14.72.4

3、×102 14－7.32－2.682.64＋8.67＋7.36＋11.332.31×1.2×0.54.02＋5.4＋0.985.17－1.8－3.213.75－(3.75＋6.48) 3.68＋7.56－2.687.85＋2.34－0.85＋4.6635.6－1.8－15.6－7.2 3.82＋2.9＋0.18＋9.19.6＋4.8－3.67.14－0.53－2.47 5.27＋2.86－0.66＋1.6313.35－4.68＋2.6547.8－7.45+8.8   0.398+0.36+3.64      15.75+3.59－0.59+14.2542.5－(6.07＋

4、1.13) 73.8－1.64－13.8－5.3666.86－8.66－1.340.25×16.2×4 3.72×3.5＋6.28×3.536.8－3.9－6.125.48－(9.4－0.52) 4.8×7.8＋78×0.523.6×1026.4×0.25＋3.6÷4 32＋4.9－0.94.8－4.8×0.5(1.25－0.125)×8 4.8×100.156.5×9.9＋56.57.09×10.8－0.8×7.094.2÷3.5320÷1.25÷818.76×9.9＋18.763.52÷2.5÷0.44.78÷0.2＋3.443.9－4.1＋6.1－5.90.49÷1

5、.41.25×2.5×323.6－0.6×2 3.65×10.13.6－3.6×0.815.2÷0.25÷4 5.6÷3.59.6÷0.8÷0.44.2×99＋4.2 0.89×100.1146.5－(23＋46.5)17.8÷(1.78×4)5.83×2＋4.27(45.9－32.7)÷8÷0.1259.7×99＋9.74.36×12.5×815.6×13.1－15.6－15.6×2.10.65×10127.5×3.7－7.5×3.78.54÷2.5÷0.43.83×4.56＋3.83×5.44（2.5－0.25）×0.49.16×1.5－0.5×9.163.6－3.6

6、×0.5 4.5÷1.84.2÷3.5930÷0.6÷563.4÷2.5÷0.44.9÷1.43.9÷（1.3×5）（7.7＋1.54）÷0.72.5×2.42.7÷450.35×1.25×2×0.832.4×0.9＋0.1×32.415÷0.2570÷2815÷（0.15×0.4）4.25÷2.5×9.9＋0.170.125×640.68×1013.26×5.7－3.26×0.755.6×99＋55.61.25×213×0.819.625－(4.379＋9.625)3.42×5.7＋4.3×3.428.75×11－8.759.9×212(12.3×4)×2.5＝×(×2

7、.5)(8＋0.4)×25＝×25＋×259.8×124＝(－)×124＝×－×1求最大公约数和最小公倍数（15分）#includeintfun1(intm,intn)//辗转相除法求m/n的公约数{intr;while(n){r=m%n;m=n;n=r;}returnm;}intfun2(intm,intn)//最小公倍数{returnm*n/fun1(m,n);}intmain(){inta,b;scanf("%d,%d",&a,&b);//输入printf("最大公约数：%d最小公倍数：%d",